152 



PSrCHE. 



[December 1S97. 



Large larva. Head 2.S mm., rounded, 

 black, with many coarse white setae both 

 primary and secondary: small, not as high 

 as joint 2. Body cylindrical, uniform, feet 

 normal. On thorax four tubercles, on abdo- 

 men tliree on each side of each segment, two 

 only on the ninth abdominal, one on the tenth 

 (anal plate), all paired, no median ones. 

 Tubercle i on joints 4, 5, and 12 slightly 

 prominent, the others rounded and about as 

 long as wide, the lower row flat, indicated 

 only by the hairs. They bear few stifl' white 

 hairs with black annuliis. Skin rather 

 thickly covered with white secondary hairs, 

 less coarse than the primary ones, directed 

 obliquely backward. Color black, a dorsal 

 band of yellow dots each centered by a sec- 

 ondary hair, absent in the incisures; a white 

 subdorsal line (below i) broken into dashes; 

 a wavy substigmatal white line; warts dark 

 red. Many of the secondary hairs arise from 

 faint whitish dots ; leg plates reddish black. 



Pupa. Head piece with a central ridge; 

 antenna cases large, strongly segmented; 

 abdomen with three moveable incisures, 

 square, subfurcate at tip with two remote 

 clusters of spines. Whole surface coai"sely 

 shagreened, the posterior dorsal edges of the 

 abdominal seginents also pitted. Color 

 bronzj- brown, the incisures blackish. Length 

 23 mm., width 9 mm. 



(Arizona, Koebele collector, coll. U. S. 

 N. M.) 



A NEW LECAXIUM ON MAGNOLIA 

 FROM FLORIDA. 



:. Descriptive; by t. d. a. cockerell, 

 n. m. agr. exp. sta. 



Leranium turgidiim^ n. sp, — ^$ scale 54 

 mm. long, 44 wide, 3i high. Dark reddish- 

 brown, very shiny, swollen into irregular 

 pustule-like prominences, w-ith large puncti- 

 form depressions between. 



5. Boiled in caustic soda, turns the liquid 

 dark sepia, and gives a slight musky odor. 

 Dermis chitinous, orange-brown, not reticu- 

 lated, presenting numerous small gland spots. 

 Marginal spines e.\cessively minute. Mouth 

 parts very small, rostral loop very short 

 Antennae very small, short and very stout, 

 bristly at tip, segmentation obscure. Legs, 

 ve.ry small and stout. Coxa considerably 

 broader than long; femur very broad, and 

 not much longer than broad ; tibia and tarsus 

 also extremely broad; tibia a little longer 

 than tarsus, and about one fourth longer than 

 broad. Claw short and stout, much curved. 

 Digitules comparatively short, filiform. 



The embryonic larva is remarkable for the 

 large marginal spines, about 17 on each side. 



Hab. — On twigs of Magnolia glauca, 

 April 22, 1S97, at Lake City, Florida. 

 (Quainlance No. 24). This species is unus- 

 ually interesting, being intermediate between 

 the subgenus Eulecanium of the north, 

 and the peculiar L. farvicoriie of Florida, 

 which itself exhibits characters transitional 

 to the southwestern subgenus Tuomeyella. 

 The depressions of L. Uirgidum correspond 

 to the pits oi parvicorne. 



L. magiioliarum Ckll., found by Mr. 

 Ehrhorn on Magnolia at Sau Jos^, Calif., is 

 quite different, being S mm. long, 4^ wide, 

 and 24 high, with 8-jointed antennae, formula 

 3 (451) (28) 67 varying to 3 (41) 52 (S6) 7. 



II. Biological; by a. l. qi'AixTANXE, 



FLA. AGR. EXP. STA. 



Lecaniitm turgidum is quite common on 

 both Magnolia glauca and M. grandifiora 

 at Lake City. The young appear during 

 April in considerable numbers. These crawl 

 out on the new wood and leaves of infested 

 branches, frequently almost covering them. 

 Proportionately few of these reach maturitv, 

 however, as they are attacked by a number 

 of parasites. The life cycle appears to be 

 about one vear. 



